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From "Devaraj Das (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (HADOOP-1183) MapTask completion not recorded properly at the Reducer's end
Date Tue, 08 May 2007 06:10:15 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-1183?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Devaraj Das resolved HADOOP-1183.
---------------------------------

    Resolution: Duplicate

The original bug is a duplicate of HADOOP-1270. The comment on redesigning shuffle is now
a new issue - HADOOP-1337.

> MapTask completion not recorded properly at the Reducer's end
> -------------------------------------------------------------
>
>                 Key: HADOOP-1183
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1183
>             Project: Hadoop
>          Issue Type: Bug
>          Components: mapred
>    Affects Versions: 0.12.2
>            Reporter: Devaraj Das
>         Assigned To: Devaraj Das
>            Priority: Critical
>             Fix For: 0.13.0
>
>         Attachments: 1183.new.patch, 1183.new1.patch, 1183.patch
>
>
> A couple of reducers were continuously trying to fetch map outputs from a lost tasktracker.
Although the tasks running on that lost TT successfully reexecuted elsewhere, the Reducers'
tasktrackers didn't correctly note those events.

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